Blends root re-growth Absorbs excess oil Refreshes style Beyond The Zone Rock On Dry Shampoo For Medium-Dark Hair is the ultimate time saver. It refreshes, revives, and rejuvenates the hair in a matter of minutes with no water or blow dryer required. Absorbs excess oil to leave hair looking fresh and smelling great. The hint of color compliments medium to dark shades of hair to help blend out root re-growth on color-treated hair. Helps to extend the life of your blowouts and color. Ideal for medium to dark hair.